William J. Karins (born April 14, 1974[1]) is an American meteorologist, working for NBC News.
He is currently seen primarily on NBC's Early Today, Hallie Jackson NOW and Top Story with Tom Llamas.
From 2009 to 2012, Karins had been the meteorologist on Weekend Today on Saturdays.
Prior to working at NBC, he was a meteorologist at KSNT in Topeka, Kansas, and at WCTI in New Bern, North Carolina.
This biographical article related to television in the United States is a stub.